m aksh all



v l 'mais in alto-relieve. We constantly see buildings erected ot' solid masonry, stone sills for the windows and doors, and with metallic roofs, all'bespeaking security; still, wc find the doors and shutters ot` wood. So long as this is the ease, it is idle,l no matter how massive and w'ell built the structure may be,to pretend thatl it is either fire or burglar-proof; for the burglar in a few moments cuts out'one of the panels of the door and enters the building, or"a rc'in an adjoining house or across thestreet willl soon sc intenselyxheat the door or shutter,

' when made of wood, as is often tbc caso, especiallyin` our large cities, that cre you are cognizant of the fact the building is in llames.

I am 'aware that metallic doors have been used, but theyare'such heavy, ungainly things, that', whenever" seen, the mindninstantly and instinctively associates them with eithera vonl t`a tomb, or.pri'sen. i The object of my invention is to furnish thelmarket with adoublelca'sed, raised, and ornamented metallic door or'shu'tter, burglarv and fire-proof, cheapand light,l neat and ornamental, and such :xs/'can be pantedso as to represent any kind of Wood, and, it' desired, any kind di' c arving., i i

To enableothers skilled in the `art to makeV and use my'inventon, I will pi'o'ceedto describe its construction and operation. 'i i 'l A'is the panel, and may bemado of any kind ot'sheet metal suited to the purpose, and may be either plain, es'shown in lig.`-1, or corrugated, as shown infig. 5. Between the panels A A, I introduce: braces a a,- running in zigzag lincsor curves, as 'shownin iig. 4. These braces, a a, may be formed of narrow stripslof 'sheet metal,

ofjcoils' of wire, or of metallic tubes.A vThesebraces are to be suicient in numberspropclrly to hold-the panels apart, and always to retain the same in a parallel position. ,The braces having-been'properly arranged and attached to the panels, the latter are irmlyumited4 togethergrhich can be donc .bym'eans of rivets, bolts, screws b 6,61 they maybe soldered or scamed.- B B arerails, whichenclose the upper and'lowerpportlion of the panels, and C C are stiles, which enclose their'sides.. Thesev rails andi/.Stiles areunitcd to the panels .bynbolis or` rivets, b b, as clearly shown in figs. 6 and 7. .Between the Vpanel A A and the rail' and stile B Cthere is necessarily left an opening, the width l.of the brace a. This 'opening' is closed by a moulding, D, which may be made in sheetsrand soldered, as shown in iig. 2, or seemed, as shown in iig.- 7, or itV may he struck up with the rails andl stiles, as shown in tig; 6. These mo'uldings may bomade'fin any form desired; care, however, should be taken that they conformes far as possible to.thearchitectural-style of the building for which the doors and shutters are intended. This can readily be done, and willadd much to the symmetrical beautyand harmony of the whole. c c are ornaments, which may be made of metal or other material, and suitably attached to one or'both panels. When constructed'of metal, they may be struck up in the pluto, so as .to leave' them, hs it were, inlalto-relievo, or they'may be, embossed or cast, as shown in thcldran'ingis. 'When the designs are -east, they can, be secured by secret rivets, or bolts withrnamental heads, and attached to the'panels before they are 'put together, so that they can be properly secured on the inner sida.4 "E is a shutter, and F is the base-panel .of a window constructed inA every particular exactly like the door. The 'doorsmaybe made folding, hung on hinges, or may bemade to slide. I I .Y

Having thus fully' described my invention, 4what I -claini therein as'new, and desire to secure by Letters Patent, is- I A double-cased` and double-panelled metallicy door or shutter,.\vhen ,the same is constructed and arranged substantially as described.

In testimony whereof, Ihave signed my name to this specification in the presence of two subscribing witnesses. of K. MARSHALL.

Witnesses: JOHN D. BL'oon, JonN SQHOLLINGSHEAD. 

